/* Copyright (C) 2008  Romolo Camplani, Marco Fortunato, Marco Marelli, Guido Rota, Fabio A. Schreiber et al.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.dei.perla.parser.expressions;
import java.util.ArrayList;

import org.dei.perla.parser.util.PairValue;

/**
 * Classe delle Funzioni
 * @author Stefano Vettor
 */
public class Function {
	
	private String functionName;
	
	private ArrayList<PairValue<String, Class<? extends Constant>>> parametersDescription;
	
	private Class<? extends Constant> returnedType;
	
	public Function() {
		parametersDescription = new ArrayList<PairValue<String, Class<? extends Constant>>>();
	}

	/**
	 * @return the functionName
	 */
	public String getFunctionName() {
		return functionName;
	}

	/**
	 * @param functionName the functionName to set
	 */
	public void setFunctionName(String functionName) {
		this.functionName = functionName;
	}

	/**
	 * @return the parametersDescription
	 */
	public ArrayList<PairValue<String, Class<? extends Constant>>> getParametersDescription() {
		return parametersDescription;
	}

	/**
	 * @param parametersDescription the parametersDescription to set
	 */
	public void setParametersDescription(
			ArrayList<PairValue<String, Class<? extends Constant>>> parametersDescription) {
		this.parametersDescription = parametersDescription;
	}
	
	public void addParameter(PairValue<String, Class<? extends Constant>> par) {
		this.parametersDescription.add(par);
	}

	/**
	 * @return the returnedType
	 */
	public Class<? extends Constant> getReturnedType() {
		return returnedType;
	}

	/**
	 * @param returnedType the returnedType to set
	 */
	public void setReturnedType(Class<? extends Constant> returnedType) {
		this.returnedType = returnedType;
	}
	
	public String toString() {
		return "(" + this.returnedType.toString() + ") " + this.functionName + "( " + this.parametersDescription.toString() + " )";
	}
	
}
